Portable link sawing machine



May 31, 1932.

H. QUIST PORTABLE LINK SAWING MACHINE Filed Feb. 17, 1952 l 3 Sheets-Sheet 1 ATTORNEY May 31, 1932.

H. QUIST PORTABLE LINK SAWING MACHINE Filed Feb. 1'7, 1932 3 Sheets-Sheet 2 INVENTOR ZMLA flzzulzu ATTORNEY May 31, 1932. QUlST 3 1,861,162

PORTABLE LINK SAWING MACHINE Filed Feb. 17, 1932 3 Sheets-Sheet 3 INVENTOR ATTORNEY Patented May 31, 1932 v- UNITED STATES PATENT; OFFICE;

HENRY QUIST, 0F BROOKLYN', NEW YORK [PORTABLE LINK sAwINe MACHINE Application filed February 17,1932. Serial 110.15%,442. I a :2:

the cuttingof vertical piles and the like in which workthe. weight of the machines must be supported in order tofkeep' the saw frame free in the cut and to. insure cutting at the a predetermined angle desired.

wardly extending saw frame, supportingarm. The plate and guidewayengage battens applied to the pile and the plate, bar, and arm afi'ord atrue support and guide for the machine in its cutting action transversely .of'a pile, or the like. s I

he invention will be described with reference to the accompanying drawings, in which Fig. 1 is a plan viewypartly in 'section,

showing a machine constructed in accordance withthe invention, thesectlon being on the line 1 1,',Fig. I 2, the machinebeing 3'3, Fig. 2- T g :1

fragmentary longitudinal section on the line 4 4, Fig. 3.

shown in-position near the end of a cut.

through'a pile. r Fig. 2iis an elevationof the same.

Fig, 3 is a transverse section on the line Fig." 4 is a Fig. 5 is a. transverse section on the line -[Fig .-2. I w

Fig. 6 is a fragmentary section on the line e e. Fig. 5;

Fig. 7 is a plan viewof the motor frame 0 guide plate.

7 ig- '8 is a side elevation'of the stru t shown in Fig. 7; y

Fig. 9 is a plan Viewv of. the yoke-like fbracket carrying the bar 24:. i

1 Fig. 10 is a side elevation of thesame.

Referringto the drawings, the machine comprises'a link saw indicated at 1 guided in a frame having anopen side and-a side closed v by a guard, Thesaw frame comprises a plate links in their travel. I

shown in detail.

or assembled platesQ'with an edge channel in which the link saw. travels, the frame being connected at one end to the motor frame andat the opposite end to the guardland support for the handle. i 1

The cutter links of the saw in the presen embodiment are of a type wherein are embodied rearwardly extending reduced sections 1x, the cutting area of the links. being exteriorv to saw frame plates ,2, that area beingequal to. or slightly thicker than the thickness of the frame, the arrangement being such that the edges of'the frame form abutting and guiding surfaces for thecutting At the motor end ofthe machine the saw links travel overand are driven by a sprocket 3 on a shaft 4 in the motor frame and shaft 4: is rotated by suitable connections with the; motor 5, the driving elements forming no part-of the present invention and not: being At the motor end of the machine the saw frame 2 is clamped between the bracket arms 6 and 6% of thejmotor frame and arebolted thereto by means of the bolt? passing through upper and *lower clamped spiders8. At, theirouterksides arms 6 and 600 are spaced and apertured to receive'bolts 9. so that one end of the saw. guard 10 may;

be secured in position to guard the saw at "30 one side of the saw frame or the other, as

From sprocket 3 the sawis led forwardly to the forward end of the saw frame, being;, guided thereby, the reduced inner extensions V of the saw links extending between the channelled walls of the saw frame and the cutting portions of the saw links abutting the edge of the saw frame and being given'a bearings" thereby. 1' v *At the handle end of the machine just referred to, the saw'frame is bolted to aguard and handle support member 11 having a curved face abutting the cutting edge of the saw-bolts 12, 1250 passing through member 11 and the plates of the saw frame.- Member'll is formed with lateral extending arms 11a" to either of which may be secured by stud screws 13 one end of the guard 10. A rearwardly extending arm of member 11 may receive and have bolted thereto a handle 14. 7 To the motor end of the machine I apply 'a guide plate. In the present embodiment, the guide plate is U-shaped so as to form a broad central section and legs 1541:. Near its outer end each leg 15.10 is apertured to receivem. bqltJfiw-hich passes through a lug 17 of the motor frame and thence upwardly through a lateral extension of the arm 6:0 as

shown in Fig. 2, pipe separators 1 8 surround-c ing bolt 16 and holding the appropriate leg 16m in the desired vertical At ea side of this broad central section 15, the guide plate is formed with'a plurality'of upwardly proiecting posts 19, best shown in "Fjg.f3, to a ut bracket arm 6 of the motor frame and to' be secured thereto by the bolts 9 and screws (20. By'the above means, the guide plate 15, 15a: is rigidly held by the motor frame, and, in'turn,lis adaptedto rigidly support the motor frame when the plate is placed on a suitable surface, as, for example,'the batten 21 applied to the post A.

Lying milder. the. guard and handle support '11 is a oke-like bracket 22 having arms 22w secure the said stud screws 13 toarms 11a; eitheghard and handle support 11. The "bracket is also strapped to the rearwardly extending arm of guard and handle support 11 by means of strap'23. Bracket 22 is formed ,at'22zm "(Fig 5 with a channelway to receive an adjusta' le guide bar 24 which may "be held in position by .a strap 25. Guide member24 has'swivelled thereto at 26 a channelledcross bar 27 rivetedor otherwise secured to an upwardly extending supporting and I guiding',plate 28 for the saw frame. .4 ichanneled cross bar member27 is adapted to be received u n a batten board 29 secured to ,batten 21w ig. 2) 'In the operation 21,21a: ,are ap lied to the pileto be cnt,'bat- 16 ten 21 being low 21: in the present embodiment, and having applied thereto board 29 to enable straddle thereof by the channelled cross bar 27 as shownjn Fig. 2. The

battens and board will extend sufficiently to .50 the sides of the pile to enable support of the machine at the instantof cut and at the end of the cut. The machine is lifted and plate 15 placed uponthe top of batten 21 simultane-.

of the device, the battens ported'bythe bracket and having a dependoppoeite :the motor frame, a bar adjustably .meehanica.l means maintainingflongitudinal tension upon the saw frame and by horizontal supporting and guiding means comprising 7 .phtes l5.and28-.md their associated elements.

Supporting and guide plate 28 may be of any oh witabte leng'th, having a length equal to the width of the saw frame or of lesser length, ins-desired.

'When the machine is placed in position and securecL; it may beoperated by one man, at themotorend. By connecting the bar 24 to cross bar 27 through theinstrumentality of a swivel connection and by rounding the edge ofplatej15, which will normally abut the' pile, I provide means by which the operator at the motor end of thevmachine may-swing the device 011 swivel26 in the arc of a circle relativelyto one batten prior to or durin the cutting operation, which will be a vantageous when close spacing exists between piles or rows .of timber being cut.

vIt willbe understood that various modifications may bemade in the form and ar-v rangement of the elements comprising the invention without. departing fromthe spirit thereof; what .I claim and desire to secure by Letters Patent,being as follows i 1. In portable linksawing machines, a mo- 1 tor and motor frame connectedthereto, a saw frame. a saw having 0 erative connections with the motor and gui' ed within the frame,

a guide plate carried by'the motor frame, abracket carried by the saw frame at the I end thereof opposite the motor frame, a bar adjustably supported bythe bracket, and a supporting plate for-the saw frame carried by the bar and movable therewith to various motor frame, a guide plate carried by the motor frame, a'bracket carried by the guard and handle support, a bar adjustably suping flange member at its inner end, and a supportingplate for the 'saw frame carried by the bar and movable therewith to various positions lengthwise of the saw frame.

3. In portable link sawing machines, a saw frame,.a motor and motor frame connected thereto, a saw having operative connections .withthe motoriand guided within the frame, abracket carried by the end of the saw frame 4. In portable link sawing machines, a saw frame, a motor and motor frame connected thereto, the saw having operative connections I with the motor and supported by said saw frame, a bracket carried by the saw frame at the end thereof opposite the motor frame, a batten-engaging member having a slidable and pivotal connection with the bracket, and a batten-engaging member carried by the m0- tor frame.

5. In portable link sawing machines, a'saw frame, a motorand motor frame connected thereto, a saw having operative connections with the motor. and guided by the frame, a guard and handle support connected to the saw frame at the end thereof opposite the motor frame, a batten-engaging guide plate carried by the motor frame and having a curved engaging edge for a pile or the like, a bracket carried by the guard and handle support, a bar adjustably supported by the bracket and having a depending flange member at its inner end for engaging a batten member and a supporting plate for the saw frame carried by the bar and movable therewith to various positions lengthwise of the saw frame, the connection between the supporting plate and the bar being pivotal.

In testimony whereof, I have signed my name to this specification.

' HENRY QUISTa m s w m mam 

